WO2000049780A1 - Procede et appareil d'entrelacement pour systemes de telecommunication d'amcr a ondes porteuses multipleset a diversite de transmission orthogonale - Google Patents

Procede et appareil d'entrelacement pour systemes de telecommunication d'amcr a ondes porteuses multipleset a diversite de transmission orthogonale Download PDF

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Publication number
WO2000049780A1
WO2000049780A1 PCT/US2000/003904 US0003904W WO0049780A1 WO 2000049780 A1 WO2000049780 A1 WO 2000049780A1 US 0003904 W US0003904 W US 0003904W WO 0049780 A1 WO0049780 A1 WO 0049780A1
Authority
WO
WIPO (PCT)
Prior art keywords
data symbols
symbols
data
block
group
Prior art date
Application number
PCT/US2000/003904
Other languages
English (en)
Inventor
Jiangnan Chen
Louay Jalloul
Original Assignee
Motorola Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Motorola Inc. filed Critical Motorola Inc.
Priority to JP2000600406A priority Critical patent/JP4391703B2/ja
Priority to BRPI0008223-6B1A priority patent/BR0008223B1/pt
Priority to DE60030255T priority patent/DE60030255T2/de
Priority to EP00919304A priority patent/EP1155544B1/fr
Publication of WO2000049780A1 publication Critical patent/WO2000049780A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0059—Convolutional codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0071—Use of interleaving
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0016—Time-frequency-code
    • H04L5/0021—Time-frequency-code in which codes are applied as a frequency-domain sequences, e.g. MC-CDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0078—Timing of allocation
    • H04L5/0082—Timing of allocation at predetermined intervals
    • H04L5/0083—Timing of allocation at predetermined intervals symbol-by-symbol

Definitions

  • CDMA code division multiple access
  • Orthogonal transmit diversity is a feature of a CDMA communication
  • OTD feature is applicable for both single carrier CDMA system and multi-
  • MC carriers
  • information data in a CDMA system is coded according
  • coding rates of 1 /3, Vi and V are commonly used.
  • the encoder produces 3 data symbols
  • the information data may not be decoded or
  • a system implementing the OTD feature transmits encoded data symbols of an information data bit from at least two transmit
  • a mobile station or a remote receiving unit,
  • tail data bits in a block 101 to produce information data
  • Information data bits 102 are fed to a channel encoder 103 for
  • the encoded symbols 104 are fed
  • interleaving interleaved symbols 106 are produced. Interleaved symbols 106 pass through a transmit signal processing block 107 which may
  • Block 107 produces data
  • the data symbols 1 10 and 11 1 are
  • antennas 114 and 115 are demodulated, decoded and combined to recover
  • the OTD interleaver 105 requires at least two data block interleavers 120
  • the information data bits 102 are normally transmitted in a block
  • the encoded symbols are also in a block of encoded
  • Time frames of 5
  • the information data rate also may
  • the number of encoded symbols depends on the encoding rate and the number of information data bits in a
  • time frame may include 384 encoded symbols for an information data bit
  • a block of encoded symbols 104 are de-muxed in a de-mux block 122 to
  • Two data block interleavers 120 and 121 according to a prior art provide
  • interleaving functions for "N/2" symbols.
  • the operation of interleaving is
  • the interleavers 120 and 121 then output interleaved
  • interleaver 105 may additionally for improving performance may include a
  • the circular shift operation 127 shifting data symbols by a predetermined number.
  • the circular shift function 127 shifts the data symbols of, in this
  • symbols 128 and 125 are muxed in a mux-ing block 129 to produce
  • the OTD MC interleaver 201 may be used. Interleaver 201 inputs
  • interleaver blocks 206, 207 and 208 to produce interleaved blocks of
  • Symbols 209, 214 and 215 are muxed in a mux-ing
  • the data splitter 109 splits the data block into three blocks
  • Each carrier may be transmitted from a respective antenna, or two carries from one antenna
  • interleavers and in case of MC-OTD, at least three block interleavers.
  • FIG. 1 depicts a CDMA communication system transmitter block diagram having an OTD interleaver block according to prior art.
  • FIG. 2 depicts a case of multi-carrier (MC) CDMA communication system
  • FIG. 3 depicts an OTD interleaver block diagram according to various aspects
  • FIG. 4 depicts an MC-OTD interleaver according to various aspects of the invention.
  • MC multi-carriers
  • Table 1 shows an interleaver parameters for various data rates.
  • 300 may be a direct substitute for the prior art OTD interleaver 105 shown
  • a communication system such as a CDMA communication
  • group of data symbols 303 includes data symbols from B(l) to B(n/2), and
  • second group of data symbols 304 includes data symbols from B(n/2 + 1)
  • An interleaved block of data symbols 106 is formed by an
  • data symbols by symbol counter 302 begins in first group of data symbols
  • the alternating selection ends with the data symbol B(n/2) in first group of data symbols 303 and the data symbol B(n/2 + 1) in second group of data
  • group of data symbols 304 is according to a backward addressing
  • Various aspects of the invention further includes receiving a plurality of
  • coded data symbols 104 in a block of coded data symbols, and interleaving
  • an interleaver 309 block of coded data symbols 104 according to a
  • bit reversal interleaver 309 input symbols are written sequentially at
  • Bit_Rev m ( y ) denotes the bit-reversed m-bit value of y.
  • MC CDMA communication system
  • B(n) includes dividing block of data symbols 401 into a first, second and
  • data symbols 402 includes data symbols from B(l) to B(n/3), second group
  • data symbols 403 includes data symbols from B(n/3 + 1) to B(2n/3), and
  • third group of data symbols 404 includes data symbols from B(2n/3 + 1) to
  • An interleaved block of symbols 106 is formed by an alternating
  • data symbols begins in first group of data symbols 402 beginning from the
  • selection from first group of data symbols 402 includes the data symbol
  • third group of data symbols 404 is according to a backward addressing
  • symbols 404 is the data symbol B(n-l).
  • Various aspects of the invention further includes receiving a plurality of
  • bit reversal interleaver 409 input symbols are written sequentially at addresses, N m from 0 to block length minus 1 , then the symbols are read
  • LNin/NJ LNin/NJ
  • Bit_Rev m ( y ) denotes the bit- reversed -bit value of y.
  • the invention includes in various aspects, an interleaving
  • a single bit reversal interleaver is used
  • the first counter points to the address of the output symbols.
  • the grouping of the symbols after the interleaver may include 3 counters,
  • the first and second counter point to the beginning and 2/3 of the
  • bit reversal interleaver input symbols are written sequentially at
  • L J denotes the largest integer less than or equal to x
  • Bit_Revm( y ) denotes the bit-reversed m-bit value of y.
  • FIG. 5 represents a symbol address in an input block of data. The location
  • interleaver 105 from the transmitter side which may be
  • a base station may include the following steps:
  • bits go to Ml and odd bits go to M2.
  • the transmitter side for example Base Station

Abstract

L'invention concerne un système de télécommunication comportant un procédé et un appareil servant à entrelacer des symboles de données d'un bloc de symboles de données (301) comprenant des symboles de données B(1) à B(n). Le procédé et l'appareil associé comportent une étape consistant à diviser un bloc de symboles de données (301) en plusieurs groupes de symboles de données (303 and 304). Chaque groupe de symboles de données (303, 304) comprend des symboles de données dont le nombre est égal à une fraction de symboles de données B(1) à B(n), telle que 1/2 et 1/3, de sorte que le nombre total de symboles de données dans plusieurs groupes de symboles de données (303, 304) est sensiblement égal à 'n' symboles de données. Un bloc entrelacé de symboles de données (106) est constitué d'une sélection alternante de symboles de données provenant de plusieurs groupes de symboles de données (303, 304). La sélection alternante provenant de chacun des groupes de symboles de données (303, 304) est effectuée en fonction d'une mise en correspondance d'adressage progressif ou régressif. Plusieurs symboles de données codés d'un bloc de symboles de données codés (104) sont reçus en vue d'un entrelacement selon une fonction d'entrelacement inversant un seul bit pour former un bloc de symboles de données (301).
PCT/US2000/003904 1999-02-16 2000-02-15 Procede et appareil d'entrelacement pour systemes de telecommunication d'amcr a ondes porteuses multipleset a diversite de transmission orthogonale WO2000049780A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2000600406A JP4391703B2 (ja) 1999-02-16 2000-02-15 直交送信ダイバーシチおよびマルチキャリアｃｄｍａ通信システム用のインタリーブ方法および装置
BRPI0008223-6B1A BR0008223B1 (pt) 1999-02-16 2000-02-15 mÉtodo e aparelho de entrelaÇamento para diversidade na transmissço ortogonal e sistemas de comunicaÇço cdma multi-portadora
DE60030255T DE60030255T2 (de) 1999-02-16 2000-02-15 Verschachtelungsverfahren und -einrichtung zur orthogonalen senddiversität und für mehrträger-cdma-kommunikationssysteme
EP00919304A EP1155544B1 (fr) 1999-02-16 2000-02-15 Procede et appareil d'entrelacement pour systemes de telecommunication d'amcr a ondes porteuses multipleset a diversite de transmission orthogonale

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US12008499P 1999-02-16 1999-02-16
US60/120,084 1999-02-16
US09/503,021 2000-02-14
US09/503,021 US6304581B1 (en) 1999-02-16 2000-02-14 Interleaving method and apparatus for orthogonal transmit diversity and multi-carriers CDMA communication systems

Publications (1)

Publication Number Publication Date
WO2000049780A1 true WO2000049780A1 (fr) 2000-08-24

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Country Status (7)

Country Link
US (1) US6304581B1 (fr)
EP (1) EP1155544B1 (fr)
JP (1) JP4391703B2 (fr)
KR (1) KR100467188B1 (fr)
BR (1) BR0008223B1 (fr)
DE (1) DE60030255T2 (fr)
WO (1) WO2000049780A1 (fr)

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WO2001041314A1 (fr) * 1999-11-30 2001-06-07 Nokia Corporation Procede et agencement de mise en oeuvre d'un entrelacement entre trames
US6400703B1 (en) * 1998-05-30 2002-06-04 Samsung Electronics, Co., Ltd. Device and method for generating and distributing coded symbols in a CDMA communication system
US6542556B1 (en) 2000-03-31 2003-04-01 Nokia Mobile Phones Ltd. Space-time code for multiple antenna transmission
WO2003079601A1 (fr) * 2002-03-14 2003-09-25 Qualcomm, Incorporated Procede et appareil servant a reduire l'interference entre les canaux dans un systeme de communication sans fil utilisant un entrelaceur non periodique
US6748024B2 (en) 2001-03-28 2004-06-08 Nokia Corporation Non-zero complex weighted space-time code for multiple antenna transmission
US6865237B1 (en) 2000-02-22 2005-03-08 Nokia Mobile Phones Limited Method and system for digital signal transmission
US7046737B2 (en) 1997-12-23 2006-05-16 Cingular Wireless Ii, Llc Near-optimal low-complexity decoding of space-time codes for wireless applications
US7120200B2 (en) 1997-09-16 2006-10-10 Cingular Wireless Ii, Llc Transmitter diversity technique for wireless communications
US7274752B2 (en) 1998-09-17 2007-09-25 Cingular Wireless Ii, Llc Maximum ratio transmission
US7477703B2 (en) 2000-02-22 2009-01-13 Nokia Mobile Phones, Limited Method and radio system for digital signal transmission using complex space-time codes
US7929473B2 (en) 2002-03-14 2011-04-19 Qualcomm Incorporated Method and apparatus for reducing interference in a wireless communication system
US8031800B2 (en) 2000-12-22 2011-10-04 Amosmet Investments Llc Transmitting digital signal
US8189539B2 (en) 2004-07-29 2012-05-29 Qualcomm Incorporated System and method for frequency diversity
US8391410B2 (en) 2004-07-29 2013-03-05 Qualcomm Incorporated Methods and apparatus for configuring a pilot symbol in a wireless communication system
US9042212B2 (en) 2005-07-29 2015-05-26 Qualcomm Incorporated Method and apparatus for communicating network identifiers in a communication system
US9065516B2 (en) 1997-10-31 2015-06-23 At&T Mobility Ii, Llc Low complexity maximum likelihood detection of concatenated space codes for wireless applications
US9246728B2 (en) 2004-07-29 2016-01-26 Qualcomm Incorporated System and method for frequency diversity
US9391751B2 (en) 2005-07-29 2016-07-12 Qualcomm Incorporated System and method for frequency diversity

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US7120200B2 (en) 1997-09-16 2006-10-10 Cingular Wireless Ii, Llc Transmitter diversity technique for wireless communications
US9065516B2 (en) 1997-10-31 2015-06-23 At&T Mobility Ii, Llc Low complexity maximum likelihood detection of concatenated space codes for wireless applications
US8179991B2 (en) 1997-12-23 2012-05-15 At&T Mobility Ii Llc Near-optimal low-complexity decoding of space-time codes for fixed wireless applications
US7526040B2 (en) 1997-12-23 2009-04-28 At&T Mobility Ii Llc Near-optimal low-complexity decoding of space-time codes for fixed wireless applications
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US7035284B2 (en) 2002-03-14 2006-04-25 Qualcomm Incorporated Method and apparatus for reducing inter-channel interference in a wireless communication system employing a non-periodic interleaver
US8391410B2 (en) 2004-07-29 2013-03-05 Qualcomm Incorporated Methods and apparatus for configuring a pilot symbol in a wireless communication system
US9003243B2 (en) 2004-07-29 2015-04-07 Qualcomm Incorporated System and method for modulation diversity
US8189539B2 (en) 2004-07-29 2012-05-29 Qualcomm Incorporated System and method for frequency diversity
US9246728B2 (en) 2004-07-29 2016-01-26 Qualcomm Incorporated System and method for frequency diversity
US9042212B2 (en) 2005-07-29 2015-05-26 Qualcomm Incorporated Method and apparatus for communicating network identifiers in a communication system
US9391751B2 (en) 2005-07-29 2016-07-12 Qualcomm Incorporated System and method for frequency diversity

Also Published As

Publication number Publication date
DE60030255D1 (de) 2006-10-05
JP4391703B2 (ja) 2009-12-24
EP1155544B1 (fr) 2006-08-23
US6304581B1 (en) 2001-10-16
EP1155544A1 (fr) 2001-11-21
DE60030255T2 (de) 2006-12-14
KR100467188B1 (ko) 2005-01-24
JP2003524929A (ja) 2003-08-19
EP1155544A4 (fr) 2003-03-19
KR20010102127A (ko) 2001-11-15
BR0008223B1 (pt) 2013-07-02
BR0008223A (pt) 2002-01-15

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